{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["concept or principle", "process parameter", "engineering feature", "enabling technology", "machanical property", "manufacturing process"], "input": "Simulation models are still to be implemented and validated mostly because the design of heterogeneous compositional gradients are very complex ."}
{"concept or principle": ["heterogeneous"], "process parameter": [], "engineering feature": ["design"], "enabling technology": ["Simulation"], "machanical property": [], "manufacturing process": []}